Call end_session_endpoint in IDP provider when login out from Console (#2476)

restapi/embedded_spec.go

@@ -3460,6 +3460,16 @@ func init() {
         ],
         "summary": "Logout from Console.",
         "operationId": "Logout",
+        "parameters": [
+          {
+            "name": "body",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/logoutRequest"
+            }
+          }
+        ],
         "responses": {
           "200": {
             "description": "A successful response."
@@ -6426,11 +6436,22 @@ func init() {
     "loginResponse": {
       "type": "object",
       "properties": {
+        "IDPRefreshToken": {
+          "type": "string"
+        },
         "sessionId": {
           "type": "string"
         }
       }
     },
+    "logoutRequest": {
+      "type": "object",
+      "properties": {
+        "state": {
+          "type": "string"
+        }
+      }
+    },
     "makeBucketRequest": {
       "type": "object",
       "required": [
@@ -11615,6 +11636,16 @@ func init() {
         ],
         "summary": "Logout from Console.",
         "operationId": "Logout",
+        "parameters": [
+          {
+            "name": "body",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/logoutRequest"
+            }
+          }
+        ],
         "responses": {
           "200": {
             "description": "A successful response."
@@ -14707,11 +14738,22 @@ func init() {
     "loginResponse": {
       "type": "object",
       "properties": {
+        "IDPRefreshToken": {
+          "type": "string"
+        },
         "sessionId": {
           "type": "string"
         }
       }
     },
+    "logoutRequest": {
+      "type": "object",
+      "properties": {
+        "state": {
+          "type": "string"
+        }
+      }
+    },
     "makeBucketRequest": {
       "type": "object",
       "required": [

restapi/operations/auth/logout_parameters.go

@@ -23,10 +23,15 @@ package auth
 // Editing this file might prove futile when you re-run the swagger generate command
 
 import (
+	"io"
 	"net/http"
 
 	"github.com/go-openapi/errors"
+	"github.com/go-openapi/runtime"
 	"github.com/go-openapi/runtime/middleware"
+	"github.com/go-openapi/validate"
+
+	"github.com/minio/console/models"
 )
 
 // NewLogoutParams creates a new LogoutParams object
@@ -45,6 +50,12 @@ type LogoutParams struct {
 
 	// HTTP Request Object
 	HTTPRequest *http.Request `json:"-"`
+
+	/*
+	  Required: true
+	  In: body
+	*/
+	Body *models.LogoutRequest
 }
 
 // BindRequest both binds and validates a request, it assumes that complex things implement a Validatable(strfmt.Registry) error interface
@@ -56,6 +67,33 @@ func (o *LogoutParams) BindRequest(r *http.Request, route *middleware.MatchedRou
 
 	o.HTTPRequest = r
 
+	if runtime.HasBody(r) {
+		defer r.Body.Close()
+		var body models.LogoutRequest
+		if err := route.Consumer.Consume(r.Body, &body); err != nil {
+			if err == io.EOF {
+				res = append(res, errors.Required("body", "body", ""))
+			} else {
+				res = append(res, errors.NewParseError("body", "body", "", err))
+			}
+		} else {
+			// validate body object
+			if err := body.Validate(route.Formats); err != nil {
+				res = append(res, err)
+			}
+
+			ctx := validate.WithOperationRequest(r.Context())
+			if err := body.ContextValidate(ctx, route.Formats); err != nil {
+				res = append(res, err)
+			}
+
+			if len(res) == 0 {
+				o.Body = &body
+			}
+		}
+	} else {
+		res = append(res, errors.Required("body", "body", ""))
+	}
 	if len(res) > 0 {
 		return errors.CompositeValidationError(res...)
 	}

restapi/user_login.go

@@ -65,6 +65,14 @@ func registerLoginHandlers(api *operations.ConsoleAPI) {
 		return middleware.ResponderFunc(func(w http.ResponseWriter, p runtime.Producer) {
 			cookie := NewSessionCookieForConsole(loginResponse.SessionID)
 			http.SetCookie(w, &cookie)
+			http.SetCookie(w, &http.Cookie{
+				Path:     "/",
+				Name:     "idp-refresh-token",
+				Value:    loginResponse.IDPRefreshToken,
+				HttpOnly: true,
+				Secure:   len(GlobalPublicCerts) > 0,
+				SameSite: http.SameSiteLaxMode,
+			})
 			authApi.NewLoginOauth2AuthNoContent().WriteResponse(w, p)
 		})
 	})
@@ -252,7 +260,8 @@ func getLoginOauth2AuthResponse(params authApi.LoginOauth2AuthParams, openIDProv
 		}
 		// serialize output
 		loginResponse := &models.LoginResponse{
-			SessionID: *token,
+			SessionID:       *token,
+			IDPRefreshToken: identityProvider.Client.RefreshToken,
 		}
 		return loginResponse, nil
 	}

restapi/user_logout.go

@@ -17,11 +17,17 @@
 package restapi
 
 import (
+	"context"
+	"encoding/base64"
+	"encoding/json"
 	"net/http"
+	"net/url"
+	"time"
 
 	"github.com/go-openapi/runtime"
 	"github.com/go-openapi/runtime/middleware"
 	"github.com/minio/console/models"
+	"github.com/minio/console/pkg/auth/idp/oauth2"
 	"github.com/minio/console/restapi/operations"
 	authApi "github.com/minio/console/restapi/operations/auth"
 )
@@ -29,13 +35,26 @@ import (
 func registerLogoutHandlers(api *operations.ConsoleAPI) {
 	// logout from console
 	api.AuthLogoutHandler = authApi.LogoutHandlerFunc(func(params authApi.LogoutParams, session *models.Principal) middleware.Responder {
-		getLogoutResponse(session)
+		err := getLogoutResponse(session, params)
+		if err != nil {
+			return authApi.NewLogoutDefault(int(err.Code)).WithPayload(err)
+		}
 		// Custom response writer to expire the session cookies
 		return middleware.ResponderFunc(func(w http.ResponseWriter, p runtime.Producer) {
 			expiredCookie := ExpireSessionCookie()
 			// this will tell the browser to clear the cookie and invalidate user session
 			// additionally we are deleting the cookie from the client side
 			http.SetCookie(w, &expiredCookie)
+			http.SetCookie(w, &http.Cookie{
+				Path:     "/",
+				Name:     "idp-refresh-token",
+				Value:    "",
+				MaxAge:   -1,
+				Expires:  time.Now().Add(-100 * time.Hour),
+				HttpOnly: true,
+				Secure:   len(GlobalPublicCerts) > 0,
+				SameSite: http.SameSiteLaxMode,
+			})
 			authApi.NewLogoutOK().WriteResponse(w, p)
 		})
 	})
@@ -47,8 +66,45 @@ func logout(credentials ConsoleCredentialsI) {
 }
 
 // getLogoutResponse performs logout() and returns nil or errors
-func getLogoutResponse(session *models.Principal) {
+func getLogoutResponse(session *models.Principal, params authApi.LogoutParams) *models.Error {
+	ctx, cancel := context.WithCancel(params.HTTPRequest.Context())
+	defer cancel()
+	state := params.Body.State
+	if state != "" {
+		if err := logoutFromIDPProvider(params.HTTPRequest, state); err != nil {
+			return ErrorWithContext(ctx, err)
+		}
+	}
 	creds := getConsoleCredentialsFromSession(session)
 	credentials := ConsoleCredentials{ConsoleCredentials: creds}
 	logout(credentials)
+	return nil
+}
+
+func logoutFromIDPProvider(r *http.Request, state string) error {
+	decodedRState, err := base64.StdEncoding.DecodeString(state)
+	if err != nil {
+		return err
+	}
+	var requestItems oauth2.LoginURLParams
+	err = json.Unmarshal(decodedRState, &requestItems)
+	if err != nil {
+		return err
+	}
+	providerCfg := GlobalMinIOConfig.OpenIDProviders[requestItems.IDPName]
+	refreshToken, err := r.Cookie("idp-refresh-token")
+	if err != nil {
+		return err
+	}
+	if providerCfg.EndSessionEndpoint != "" {
+		params := url.Values{}
+		params.Add("client_id", providerCfg.ClientID)
+		params.Add("client_secret", providerCfg.ClientSecret)
+		params.Add("refresh_token", refreshToken.Value)
+		_, err := http.PostForm(providerCfg.EndSessionEndpoint, params)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
 }